11112111119987 has 2 divisors, whose sum is σ = 11112111119988. Its totient is φ = 11112111119986.

The previous prime is 11112111119887. The next prime is 11112111120029. The reversal of 11112111119987 is 78991111121111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11112111119987 - 2⁴⁰ = 10012599492211 is a prime.

It is not a weakly prime, because it can be changed into another prime (11112111119687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556055559993 + 5556055559994.

It is an arithmetic number, because the mean of its divisors is an integer number (5556055559994).

Almost surely, 2^{11112111119987} is an apocalyptic number.

11112111119987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112111119987 is an equidigital number, since it uses as much as digits as its factorization.

11112111119987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 44.

The spelling of 11112111119987 in words is "eleven trillion, one hundred twelve billion, one hundred eleven million, one hundred nineteen thousand, nine hundred eighty-seven".